Polarographic behaviour of several amidoximes and their copper (II) and mercury (II) complexes

✍ Scribed by E. Casassas; M. Esteban; V. Cerdà; F. Borrull

• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 492 KB
• Volume: 34
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(89)87184-1

✦ Synopsis

The study by Tast-dc and differential pulse polarography of several amidoxime compounds is reported. The amidoximes studied are: l,l'-azobis(isobutiroamidoxirne) (AIBA), nitrilotriacetoamidoxime (NTAA), ethylenediaminetetra-acetoamidoxime (EDTAA), 3,3'-iminodipropioamidoxime (IDPA), 3,3'oxydipropioamidoxime (ODPA) and 3,3'-thiodipropioamidoxime (TDPA). EDTAA, ODPA, TDPA and IDPA give well-defined anodic signals. For NTAA only a shoulder is obtained, and no signal is observed for AIBA. The anodic signals obtained are due to the oxidation of mercury to form 1: 1 Hg(II)-amidoxime complexes. AIBA yields a cathodic wave due to reduction of the azo group. Some amidoximato-copper(H) complexes are studied: their stoichiometries are established and their stability constants 8, evaluated.